# Sunflower: Solar Power Manager 5V

**Type:** Product page · **SKU:** DFR0559 · **Brand:** [DFRobot](https://core-electronics.com.au/brands/dfrobot-australia)
**Page:** https://core-electronics.com.au/sunflower-solar-power-manager-5v.html ([markdown](https://core-electronics.com.au/sunflower-solar-power-manager-5v.html.md))

DFRobot is launching a brand new series - Sunflower, focusing on high-efficiency, small power solar energy management for IoT projects and renewable energy applications...

## Pricing

- **Price:** $13.35 (inc GST) — $12.14 AUD, exc GST
- **Quantity discounts:** 6+ $11.53 (exc GST) · 12+ $11.05 (exc GST)

## Availability & dispatch

- In stock, ships same business day if ordered before 2PM (Australia/Sydney).
- We can dispatch 25 today, and up to 2300 more in 8–12 days.

## Description

DFRobot is launching a brand new series - Sunflower, focusing on high-efficiency, small power solar energy management for [IoT projects](https://www.dfrobot.com/category-projects.html?search=Iot) and renewable energy applications.

 | Feature | [Solar Power Manager 5V](https://core-electronics.com.au/sunflower-solar-power-manager-5v.html) | [Solar Power Manager (9V/12V/18V)](https://core-electronics.com.au/sunflower-solar-power-manager-9v-12v-18v.html) | [Solar Power Manager for 12V Lead-Acid](https://core-electronics.com.au/solar-power-manager-for-12v-lead-acid-battery.html) | [Micro Solar Power Manager](https://core-electronics.com.au/solar-power-manager-micro-2v-160ma-solar-panel-included.html) |
|---|---|---|---|---|
| **SKU** | DFR0559 | DFR0535 | DFR0580 | DFR0579 |
| **Solar Power Management IC** | CN3165 | LTC3652 | CN3767 | SPV1050 |
| **Solar Input Voltage** | 4.4V–6V | 7V–30V | 15V–25V | 0.5V–4V |
| **Max Charge Current** | 900mA (Solar/USB) | 2A (Solar/USB) | 4A (Solar) | 70mA (Solar) / 100mA (USB) |
| **Topology** | Linear Regulator | DC-DC Buck | DC-DC Buck | DC-DC Boost |
| **Battery** | 3.7V Lithium | 3.7V Lithium | 12V Lead-Acid | 3.7V Lithium |
| **MPPT** | 5V Fixed | 9V/12V/18V Optional | Fixed 18V | 75% Open Voltage |
| **Battery Protections** | Over Charge/Over Discharge/Over Current/Reverse Connection | Over Charge/Over Discharge/Over Current/Reverse Connection | Over Charge/Over Discharge/Reverse Connection | Over Charge/Over Discharge/Reverse Connection |
| **Output Protections** | Short Circuit/Over Current | Short Circuit/Over Current/Over Heat | Short Circuit/Over Current/Over Heat | Short Circuit/Over Current |
| **USB Charge IN** | Yes | Yes | No | Yes |
| **USB OUT** | 5V 1A | 5V 1.5A | 5V 2.5A ×2 | No |
| **Regulated OUT** | 5V 1A | 3.3V 1A; 5V 1.5A; 9V/12V 0.5A | 5V 5A; 12V 8A | 3.3V 90mA |
| **Dimensions** | 33.0mm × 63.0mm | 78.0mm × 68.0mm | 68.0mm × 68.0mm | 30.0mm × 30.0mm |
| Features | Small 5V solar module. Applications: Power Bank, Monitors For 5V panels ≤10W | Multifunction 9V/12V/18V module. Applications: Lamps, Robots For panels ≤20W | 12V Lead-Acid support. Applications: Lighting, AgTech, UPS For 18V panels ≤100W | Micro solar module for sensors. Applications: WSN, iBeacon For panels ≤0.5W |

Solar Power Manager 5V is a small power and high-efficiency solar power management module designed for 5V solar panel. It features as MPPT (Maximum Power Point Tracking) function, maximizing the efficiency of the solar panel. Apart from serving as a solar charger, the module can provide up to 900mA charging current to 3.7V Li battery with USB charger. The ON/OFF controllable DC-DC converters with 5V 1A output satisfies the needs of various solar power projects and low-power applications. The module also employs various protection functions, such as battery/solar panel reverse connection protection, output over temperature and over current/short circuit protection, which greatly improves the stability and safety of the system.

 **Board Overview**

 ![](https://image.dfrobot.com/image//data/DFR0559/DFR0559_front.png)

Solar Power Manager 5V interfaces (front)

![](https://image.dfrobot.com/image//data/DFR0559/DFR0559_back.png)

Solar Power Manager 5V interfaces (back)

 **Connection Diagram**

 ![](https://image.dfrobot.com/image//data/DFR0559/DFR0559_App.png) 

Build a solar powered system **FEATURES**

- Constant voltage MPPT algorithm, maximizing solar panel efficiency
- Designed for 5V solar panel
- Double charging mode: solar/USB charger (900mA max charge current)
- 5V ON/OFF controllable regulated power supply for low-power applications
- Various protection functions
- USB connector with ESD shell
 
### Applications

- Smart solar environment monitor system
- Solar powered robot
- Small solar street lamp
- Solar power bank
 
### Specification

- Solar power management IC: CN3065
- Solar input voltage (SOLAR IN): 4.5V~6V
- Battery input (BAT IN): 3.7V single cell Li-polymer/Li-ion battery
- Charge current(USB/SOLAR IN): 900mA Max trickle charging, constant current, constant voltage three phases charging
- Charging cutoff voltage(USB/SOLAR IN): 4.2V±1%
- USB IN voltage: 5V
- Regulated power supply: 5V 1A
- Regulated Power Supply Efficiency (3.7V battery IN): 86%@50%Load
- USB/solar charge efficiency: 73%@3.7V 900mA BAT IN
- Maximum quiescent current: <1 mA
- Protection functions 
    - BAT IN: Overcharge/reverse connection protection
    - 5V/USB OUT: short circuit/over current/overheat protection
    - SOLAR IN: reverse connection protection
- Operation temperature: -40°C ~ 85°C
- Dimension: 33.0mm\*63.0mm
 
### Documents

- [Product wiki](https://wiki.dfrobot.com/Solar_Power_Manager_5V_SKU__DFR0559)
- [More Documents](https://wiki.dfrobot.com/Solar_Power_Manager_5V_SKU__DFR0559#target_11)
 
### Parts List

- Solar Power Manager 5V x1
- 2.54mm Black Jumper x1
- M3\*10mm Nylon Pillar x4
- M3\*5mm Stainless Steel Screw x4
- 14\*14\*7mm Black Aluminum Cooling Fin x1
- 14\*14\*0.5mm Thermal Conductive Silicone Pad x1

## Images

- [Product image 1](https://core-electronics.com.au/media/catalog/product/1/_/1_5_4.jpg)